The line segment joining two points on the circle, which passes through the centre of a circle, is called the diameter of the circle. We can say that the line segment joining the centre to the point on the circle is called the radius of the circle.
The fixed distance from the point on the circle to the centre of a circle is called the radius of the circle. The fixed point of the circle, from where all the points are drawn with equal distance, is known as the centre of a circle. The different terms associated with the circle are discussed below: The fixed point is called the centre of the circle, and the fixed distance is named the radius of the circle. The locus of the set of all points in a plane, which is at equal distances from a fixed point, is called a circle. In this article, we will discuss in detail about the perimeter and area of a circle and more.
Area of circle how to#
The interactive below shows how to calculate pi’s value. The ratio of the circumference to the diameter of any circle is. The ratio of a circle’s circumference (perimeter) to its diameter had been known for a long time. To approximate, he drew a regular polygon within the circle, and the more sides he drew on the polygon, the better the approximation he would achieve. The space or region enclosed by a circle is called the area of the circle.Īrchimedes, a Greek mathematician, is credited with devising the method for calculating the value of pi.
The length of the boundary of the circle is called the perimeter or circumference of a circle.
In our daily life, we see many circular objects around us like a ring, bottom of a bottle, a steering wheel, etc. Perimeter and Area of Circle: Circle is a very important geometric figure.
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